A new one from eBay - odd handmade slip joint any ideas?

[Walleye]

This one just arrived from eBay - not really sure what I have here - something cobbled together from various factory parts or something completely handmade. Workmanship is not so hot, but they did seem to be on the right track of making a heavy duty serviceable working type of knife.

It’s about 4 1/4” long closed. Three implements. Sadly the center spring is broken. The liners appear to be brass with copper bolsters. No markings that I can see of any sort. Unknown plastic or low quality wood product handles. The bolsters and handles are pinned on in random patterns.

See photos - any ideas to origins on this? Based on the patina, I’m thinking this is 1960’s or older probably made sometime between 1920’s and 1960’s by my guess.

[FRJ]

Someone made a decent and serviceable enough working knife and I applaud them.
Too bad about the spring but you got a working leather punch and a bottle opener.
Leather punch may help date the construction.

[Reverand]

I have no clue as to the maker. It had been listed on eBay several times, and I watched it a few times and considered it, but never pulled the trigger.
I hope that you get some answers, but I suspect that it will remain a mystery knife.

[Walleye]

I have no clue as to the maker. It had been listed on eBay several times, and I watched it a few times and considered it, but never pulled the trigger.
I hope that you get some answers, but I suspect that it will remain a mystery knife.

Yes, it has been on eBay for a long time. I finally made the seller an offer. It was too unusual to pass up. I might try making a new spring for the middle blade one of these days. It’s an unusual knife, and while I don’t hold out any big hopes that the maker will be discovered, it’s worth putting out there to see what others think.